Finding the Third Proportional to 69,418,782 and 144,218,380.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,418,782 : 144,218,380.50 = 144,218,380.50 : x
2. Step 2: Convert to fraction form
   69,418,782/144,218,380.50 = 144,218,380.50/x
3. Step 3: Cross multiply
   69,418,782x = 144,218,380.50 × 144,218,380.50
4. Step 4: Simplify right side
   69,418,782x = 20,798,941,274,042,780
5. Step 5: Solve for x
   x = 20,798,941,274,042,780/69,418,782
6. Step 6: Final answer
   x = 299,615,474.01